Ever since I got into hardmode, this has been my number one pet peeve with Terraria. I haven't been able to get much work done in my world because so much is corrupt. This is also the reason why I've started playing Terraria less, because I can barely go out exploring anymore, and my main mine is also corrupted, which means that I have a hard time going out looking for the hardmode ores. Anyways, I made this thread to find out a reliable way of stopping corruption, so your answers would be appreciated. P.S: The solution that I keep hearing is: "Oh, you just take holy water and spread Hallow everywhere." Yes, I know that Hallow is easier to cope with than corruption, but the problem is that Hallow also spreads. What I want is to figure out how to stop the corruption without giving myself another thing to worry about. I don't want to completely get rid of it, because I know I'll need it. I just want to keep the main part of my world neutral. Edit: I don't want any 3rd party programs.